This research aimed to develop a causal relationship model of the behavior of a Thai rural community in disposing of used batteries. The variables studied were 1) the household latent variable (three observable variables); 2) the social latent variable (six observable variables); 3) the intention latent variable (three observable variable); and 4) the behavior latent variable (three observable variables). Six hundred households were surveyed using a questionnaire. The questionnaire developed was validated by seven experts and its reliability was established by testing it with a sample group. Results showed that the modified model do present a good overall level of fit. The House and social positively and directly influenced intention. Intention positively and directly influenced behavior. The theoretical and practical implications relating specifically to intention to the behavior in disposing of used dry batteries by households are emphasized. The modified model indicated eighty-nine percent of the variance in the behavior in disposing of used dry batteries by households was explained by the intention factors. The most direct effect on behavior was the intention factors with 0.89 of effect size. The factors with indirect effects on behavior were household and social factors with an effect size of 0.52 and 0.35.